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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Creative CT1975-SAM pinout or equivalent?
No info found on these 11 pin audio output devices except
"Creative used these amplifiers in the previous generation speaker systems, like FPS-1000 and FPS-1500." Here used on one channel in a 2001 Cambridge soundworks desktop theater DTT2200, other numbers on the chassis EAX CSW 4300 |
#2
Posted to sci.electronics.repair
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Creative CT1975-SAM pinout or equivalent?
N_Cook wrote in message
... No info found on these 11 pin audio output devices except "Creative used these amplifiers in the previous generation speaker systems, like FPS-1000 and FPS-1500." Here used on one channel in a 2001 Cambridge soundworks desktop theater DTT2200, other numbers on the chassis EAX CSW 4300 looks like failure in data-known ICs TDA7372 or M51132, not CT1975 For 2 known good CT1975 , DC V, no load pins 1 to 11 0.8(ch2 in), *, 0,8,0.8(ch1 in),0(gnd),8,8(op1),16 (sup), 8(op2),12.3 * is 2 V on one used as 2 separate channels and varies (no pcb connection to that pin) 0 to 0.6V floating presumably, on one probably set in bridge configuration driving the sub-woofer. Anyone have a more complete pinout/full data, JIC ? -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://diverse.4mg.com/index.htm |
#3
Posted to sci.electronics.repair
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Creative CT1975-SAM pinout or equivalent?
N_Cook wrote in message
... N_Cook wrote in message ... No info found on these 11 pin audio output devices except "Creative used these amplifiers in the previous generation speaker systems, like FPS-1000 and FPS-1500." Here used on one channel in a 2001 Cambridge soundworks desktop theater DTT2200, other numbers on the chassis EAX CSW 4300 looks like failure in data-known ICs TDA7372 or M51132, not CT1975 For 2 known good CT1975 , DC V, no load pins 1 to 11 0.8(ch2 in), *, 0,8,0.8(ch1 in),0(gnd),8,8(op1),16 (sup), 8(op2),12.3 * is 2 V on one used as 2 separate channels and varies (no pcb connection to that pin) 0 to 0.6V floating presumably, on one probably set in bridge configuration driving the sub-woofer. Anyone have a more complete pinout/full data, JIC ? -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://diverse.4mg.com/index.htm pin11 is standby pin3 connected to ground any guesses on the next 2 p7 in normal amp 100uF cap to ground subwoofer amp 220nF to ground p2 on the CT1975 where there is a connection to p2 100K to ground and also to the base of a TO92 via an r, -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://diverse.4mg.com/index.htm |
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